天津科技大学学报Issue(6)：40-43,4.
DSC法测定联苯的热力学性质与纯度
Thermodynamic Properties and Purity of Biphenyl Determined with DSC
王彦飞 1黄岐汕 1李福涛 1童宏2
作者信息
- 1. 天津市海洋资源与化学重点实验室，天津科技大学海洋科学与工程学院，天津 300457
- 2. PPG涂料 天津 有限公司，天津 300457
- 折叠
摘要
Abstract
The melting point,melting enthalpy and enthalpy of crystallization were determined with DSC(Differential Scanning Calorimeter). The research showed that heating/cooling rate had a great influence on the melting point of biphenyl,but little effect on the melting enthalpy or enthalpy of crystallization. Solid specific heat capacity at constant pres-sure(283.15~323.15,K)and liquid specific heat capacity at constant pressure(363.15~443.15,K)were measured. A model of the relationship between specific heat capacity at constant pressure and temperature was developed. Meanwhile,a method of determining biphenyl purity with DSC was introduced.关键词
DSC/熔点/熔融焓/结晶焓/比定压热容/纯度测定/联苯Key words
DSC/melting point/melting enthalpy/enthalpy of crystallization/specific heat capacity at constant pres-sure/purity determination/biphenyl分类
化学化工引用本文复制引用
王彦飞,黄岐汕,李福涛,童宏..DSC法测定联苯的热力学性质与纯度[J].天津科技大学学报,2013,(6):40-43,4.
